Lockheed Martin Corporation

Svetlana Monakhova Bachmann

Paul Declan Mountcastle

Byron Tietjen

Elliott Reitz

Kai-Bor Yu

Fred Tanjutco

Manuel Francisco Fernandez

Byron W Tietjen

Yasser Al-Rashid

A device isolates a substance from blood. The substance includes particles with an effective diameter that is within a range defined by effective diameters of constituents of blood. The device comprises a first sheet of graphene including a first plurality of apertures. The first plurality of apertures are configured to pass objects with an effective diameter less than or equal to the effective diameter of the particles of the substance. The device comprises a second sheet of graphene including a second plurality of apertures. The second plurality of apertures are configured to pass objects with an effective diameter less than the effective diameter of the particles of the substance. The device may be configured to include a conduit system. The device may be configured to operate according to a reversible cycle.

Graphene-based filter for isolating a substance from blood

A blade mounted radar system comprises a wind turbine having a hub and blades extending therefrom; a radar antenna configured to transmit and/or receive a radio frequency (RF) signal; and a processor in electrical communication with the radar antenna and configured to generate the RF signal for transmission and/or to process the received RF signal. The radar antenna is affixed to one of the blades of the wind turbine such that relative motion is defined between the radar antenna and a target within a line of sight of the radar antenna. The problem of the ground based radar line of sight being obscured by the wind turbine is mitigated in this setup, as radar and turbine coexist in the same structure. Improved performance and additional capability are enabled by elevated installation and vertical SAR imaging capability. Doppler capabilities are extended using known motion of the antenna relative to stationary objects.

Method of stabilizing a power grid and providing a synthetic aperture radar using a radar wind turbine

A method for processing received return signals in a visual synthetic aperture radar (ViSAR) system is provided. The method includes receiving a plurality of pulsed radar return signals over a time period corresponding to a plurality of data frames. From this data, processing is performed to generate a SAR image for each single data frame of the plurality of data frames. In parallel, the radar pulses used to form the image frames are buffered into a longer pulse sequence that is used to perform the detection processing, including identifying targets as having characteristics associated with one or more predetermined motion classes according to phase changes sensed between data frames. A visual indication of targets associated with a predetermined motion class is generated, and overlaid onto one of the SAR images.

Higher order processing for synthetic aperture radar (SAR)

Radar wind turbine

A system and method for increasing the effective angular resolution of a multi-function phased array radar system is provided. The system is operative to simultaneously transmit a plurality of overlapping sub-beams covering a representative central beam. A de-convolution process is applied to received return signals. The process includes determining the reflectivity within sub-beamwidth resolution cells defined by the overlapping sub-beams. Generated sub-beamwidth data provides the radar system with an effective angular resolution beyond that of any single transmitted beam.

Enhanced-resolution phased array radar

A method of operating a multi-function phased array radar system having an antenna array populated with dual-pol antenna elements is described. The method includes selectively controlling individual dipoles of each dual-pol antenna element in order to operate the array in either a polarimetric mode with improved cross-pol isolation, or in a multi-mission mode, wherein a plurality of singularly-polarized signals are produced.

High-resolution radar map for multi-function phased array radar

A system and method for extrapolating sampled radar data allows in one aspect spectral data to be increased without increasing scan time and in another aspect allows scan time to be decreased without decreasing radar data quality. Extrapolation is carried out by extending a sequence of In-Phase and Quadrature-Phase samples by appending additional samples to each end of the sequence. Extrapolated samples are selected to maintain the statistical properties of the original sequence. Applying conventional windowing techniques to the extrapolated sample set results in a weighted extrapolated sequence having a corresponding Doppler spectrum with an increased spectral resolution.

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Liverpool, NY, United States of America

Svetlana Monakhova Bachmann